摘要
Based on the core observation and particle size analysis of the Sangonghe Formation in well field Xiayan11 in the Junggar Basin,and in combination with sedimentary facies marks,the main microfacies is the under-water channel in the study area.After dividing single well phases,contrasting sections and analyzing plane phases,sedimentary facies section of the Sangonghe Formation in well field Xiayan11 has been mapped out to confirm the sedimentary facies in the study area.